Home / 136,605.86-188,519.40-76,175.91

Finding the Fourth Proportional to 136,605.86, 188,519.40 and 76,175.91

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Solution

The fourth proportional to 136,605.86, 188,519.40 and 76,175.91 is: 105,124.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,605.86 : 188,519.40 = 76,175.91 : x
  2. Step 2: Convert to fraction form
    136,605.86/188,519.40 = 76,175.91/x
  3. Step 3: Cross multiply
    136,605.86x = 188,519.40 × 76,175.91
  4. Step 4: Simplify right side
    136,605.86x = 14,360,636,847.65
  5. Step 5: Solve for x
    x = 14,360,636,847.65/136,605.86
  6. Step 6: Final answer
    x = 105,124.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.